Schiit Jotunheim 2 Causes Total Audio System Failure?

I just got a Schiit Jotunheim 2 using their Universal DAC option in the sound menu.
I haven’t tried a new kernel (current: 5.10 LTS), but I wouldn’t think that a DAC like this would be “cutting edge” in any way, and in any case, the original Jotunheim was released years ago.

I don’t have any other sound server (Just ALSA and Pulse), and have since reverted to using my Schiit Modi / Magni stack for audio since plugging in the USB-C for the Jotunheim causes insta sound system failure and general KDE system instability.
sarah@MidnightStarSign:~$ inxi -A

Audio:
  Device-1: NVIDIA GA104 High Definition Audio driver: snd_hda_intel
  Device-2: AMD Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000
  Series]
  driver: snd_hda_intel
  Device-3: AMD Starship/Matisse HD Audio driver: snd_hda_intel
  Device-4: JMTek LLC. Plugable USB Audio Device type: USB
  driver: hid-generic,snd-usb-audio,usbhid
  Device-5: ASUSTek ASUS AI Noise-Cancelling Mic Adapter type: USB
  driver: hid-generic,snd-usb-audio,usbhid
  Device-6: Schiit Audio Schiit Modi 3+ type: USB driver: snd-usb-audio
  Device-7: Microdia USB 2.0 Camera type: USB driver: snd-usb-audio,uvcvideo
  Sound Server-1: ALSA v: k5.10.70-1-MANJARO running: yes
  Sound Server-2: PulseAudio v: 15.0 running: yes

Here was a part of the error when I plugged in the USB-C into the Jotunheim 2 (pulseaudio -k and systemctl --user restart pulse* don’t work either):


(^Pretty sure those are supposed to be mutually exclusion lol)

The problem disappears and my Modi / Magni stack works just fine with no adjustment after a system restart, but every time I try plugging in the USB-C into Jotunheim, the entire sound system goes out the window. The audio subpanel won’t even load after that. If I try adjusting the sound via keyboard, the rest of the system lags like crazy until freezing.

Why is this happening, and how can I solve it?

Full hardware:

System:
  Kernel: 5.10.70-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
  parameters: BOOT_IMAGE=/@/boot/vmlinuz-5.10-x86_64
  root=UUID=6ce26050-4dcc-47b7-a937-45467d8b8d61 rw rootflags=subvol=@
  radeon.modeset=1 nvdia-drm.modeset=1 quiet
  cryptdevice=UUID=466d5812-64c7-4a28-bcc4-a1a5adfa9450:luks-466d5812-64c7-4a28-bcc4-a1a5adfa9450
  root=/dev/mapper/luks-466d5812-64c7-4a28-bcc4-a1a5adfa9450 apparmor=1
  security=apparmor
  resume=/dev/mapper/luks-81b2dc57-06f5-4471-b484-77c3a516f307
  udev.log_priority=3
  Desktop: KDE Plasma 5.22.5 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM
  Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop Mobo: ASUSTeK model: PRIME X570-PRO v: Rev X.0x
  serial: <filter> UEFI: American Megatrends v: 3001 date: 12/04/2020
Battery:
  Message: No system battery data found. Is one present?
Memory:
  RAM: total: 62.78 GiB used: 15.11 GiB (24.1%)
  RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: 16-Core model: AMD Ryzen 9 5950X bits: 64 type: MT MCP arch: Zen 3
  family: 19 (25) model-id: 21 (33) stepping: 0 microcode: A201009 cache:
  L2: 8 MiB bogomips: 217722
  Speed: 2874 MHz min/max: 2200/3400 MHz boost: enabled Core speeds (MHz):
  1: 2874 2: 2363 3: 3298 4: 3460 5: 4011 6: 3080 7: 4320 8: 3103 9: 2856
  10: 2371 11: 2464 12: 2472 13: 2572 14: 2847 15: 2467 16: 2484 17: 2492
  18: 3178 19: 3158 20: 3456 21: 3043 22: 3814 23: 3119 24: 2647 25: 3658
  26: 3182 27: 2411 28: 2436 29: 2646 30: 2815 31: 3102 32: 3423
  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
  bmi2 bpext cat_l3 cdp_l3 clflush clflushopt clwb clzero cmov cmp_legacy
  constant_tsc cpb cpuid cqm cqm_llc cqm_mbm_local cqm_mbm_total cqm_occup_llc
  cr8_legacy cx16 cx8 de decodeassists erms extapic extd_apicid f16c
  flushbyasid fma fpu fsgsbase fsrm fxsr fxsr_opt ht hw_pstate ibpb ibrs ibs
  invpcid irperf lahf_lm lbrv lm mba mca mce misalignsse mmx mmxext monitor
  movbe msr mtrr mwaitx nonstop_tsc nopl npt nrip_save nx ospke osvw
  overflow_recov pae pat pausefilter pclmulqdq pdpe1gb perfctr_core
  perfctr_llc perfctr_nb pfthreshold pge pku pni popcnt pse pse36 rdpid rdpru
  rdrand rdseed rdt_a rdtscp rep_good sep sha_ni skinit smap smca smep ssbd
  sse sse2 sse4_1 sse4_2 sse4a ssse3 stibp succor svm svm_lock syscall tce
  topoext tsc tsc_scale umip v_vmsave_vmload vaes vgif vmcb_clean vme vmmcall
  vpclmulqdq wbnoinvd wdt xgetbv1 xsave xsavec xsaveerptr xsaveopt xsaves
  Vulnerabilities: Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: spec_store_bypass
  mitigation: Speculative Store Bypass disabled via prctl and seccomp
  Type: spectre_v1
  mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional, IBRS_FW,
  STIBP: always-on, RSB filling
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GA104 [GeForce RTX 3070] vendor: ASUSTeK driver: nvidia
  v: 470.63.01 alternate: nouveau,nvidia_drm bus-ID: 0a:00.0
  chip-ID: 10de:2484 class-ID: 0300
  Device-2: AMD Cape Verde PRO [Radeon HD 7750/8740 / R7 250E]
  vendor: VISIONTEK driver: radeon v: kernel alternate: amdgpu bus-ID: 0b:00.0
  chip-ID: 1002:683f class-ID: 0300
  Device-3: Microdia USB 2.0 Camera type: USB driver: snd-usb-audio,uvcvideo
  bus-ID: 7-2:2 chip-ID: 0c45:6367 class-ID: 0102 serial: <filter>
  Display: x11 server: X.Org 1.20.13 compositor: kwin_x11 driver:
  loaded: modesetting,nvidia display-ID: :0 screens: 1
  Screen-1: 0 s-res: 5760x2160 s-dpi: 80 s-size: 1829x686mm (72.0x27.0")
  s-diag: 1953mm (76.9")
  Monitor-1: DP-1 res: 1920x1080 dpi: 93 size: 527x296mm (20.7x11.7")
  diag: 604mm (23.8")
  Monitor-2: HDMI-0 res: 1920x1080 dpi: 93 size: 527x296mm (20.7x11.7")
  diag: 604mm (23.8")
  Monitor-3: DP-3 res: 1920x1080 dpi: 82 size: 598x336mm (23.5x13.2")
  diag: 686mm (27")
  Monitor-4: DP-4 res: 1920x1080 dpi: 82 size: 598x336mm (23.5x13.2")
  diag: 686mm (27")
  Monitor-5: DP-1-3 res: 1920x1080 dpi: 93 size: 527x296mm (20.7x11.7")
  diag: 604mm (23.8")
  Monitor-6: DP-1-4 res: 1920x1080 dpi: 82 size: 598x336mm (23.5x13.2")
  diag: 686mm (27")
  OpenGL: renderer: NVIDIA GeForce RTX 3070/PCIe/SSE2
  v: 4.6.0 NVIDIA 470.63.01 direct render: Yes
Audio:
  Device-1: NVIDIA GA104 High Definition Audio vendor: ASUSTeK
  driver: snd_hda_intel v: kernel bus-ID: 0a:00.1 chip-ID: 10de:228b
  class-ID: 0403
  Device-2: AMD Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000
  Series]
  vendor: VISIONTEK driver: snd_hda_intel v: kernel bus-ID: 0b:00.1
  chip-ID: 1002:aab0 class-ID: 0403
  Device-3: AMD Starship/Matisse HD Audio vendor: ASUSTeK
  driver: snd_hda_intel v: kernel bus-ID: 0d:00.4 chip-ID: 1022:1487
  class-ID: 0403
  Device-4: JMTek LLC. Plugable USB Audio Device type: USB
  driver: hid-generic,snd-usb-audio,usbhid bus-ID: 3-1:2 chip-ID: 0c76:120b
  class-ID: 0300 serial: <filter>
  Device-5: ASUSTek ASUS AI Noise-Cancelling Mic Adapter type: USB
  driver: hid-generic,snd-usb-audio,usbhid bus-ID: 5-5:4 chip-ID: 0b05:194e
  class-ID: 0300 serial: <filter>
  Device-6: Schiit Audio Schiit Modi 3+ type: USB driver: snd-usb-audio
  bus-ID: 7-1:3 chip-ID: 30be:1014 class-ID: 0102
  Device-7: Microdia USB 2.0 Camera type: USB driver: snd-usb-audio,uvcvideo
  bus-ID: 7-2:2 chip-ID: 0c45:6367 class-ID: 0102 serial: <filter>
  Sound Server-1: ALSA v: k5.10.70-1-MANJARO running: yes
  Sound Server-2: JACK v: 1.9.19 running: no
  Sound Server-3: PulseAudio v: 15.0 running: yes
  Sound Server-4: PipeWire v: 0.3.38 running: no
Network:
  Device-1: Intel I211 Gigabit Network vendor: ASUSTeK driver: igb v: kernel
  port: f000 bus-ID: 06:00.0 chip-ID: 8086:1539 class-ID: 0200
  IF: enp6s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
  broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  WAN IP: <filter>
Bluetooth:
  Device-1: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) type: USB
  driver: btusb v: 0.8 bus-ID: 3-5.3:7 chip-ID: 0a12:0001 class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
Logical:
  Message: No logical block device data found.
  Device-1: luks-c847cf9f-c6b5-4624-a25e-4531e318851a maj-min: 254:2
  type: LUKS dm: dm-2 size: 3.64 TiB
  Components:
  p-1: sda1 maj-min: 8:1 size: 3.64 TiB
  Device-2: luks-466d5812-64c7-4a28-bcc4-a1a5adfa9450 maj-min: 254:0
  type: LUKS dm: dm-0 size: 864.75 GiB
  Components:
  p-1: nvme0n1p2 maj-min: 259:2 size: 864.75 GiB
  Device-3: luks-81b2dc57-06f5-4471-b484-77c3a516f307 maj-min: 254:1
  type: LUKS dm: dm-1 size: 66.26 GiB
  Components:
  p-1: nvme0n1p3 maj-min: 259:3 size: 66.26 GiB
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 9.11 TiB used: 2.51 TiB (27.6%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital
  model: WDS100T3X0C-00SJG0 size: 931.51 GiB block-size: physical: 512 B
  logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
  rev: 111110WD temp: 56.9 C scheme: GPT
  ID-2: /dev/nvme1n1 maj-min: 259:4 vendor: Western Digital
  model: WDS100T2B0C-00PXH0 size: 931.51 GiB block-size: physical: 512 B
  logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
  rev: 211070WD temp: 46.9 C scheme: GPT
  ID-3: /dev/sda maj-min: 8:0 vendor: Western Digital
  model: WD4005FZBX-00K5WB0 size: 3.64 TiB block-size: physical: 4096 B
  logical: 512 B speed: 6.0 Gb/s type: HDD rpm: 7200 serial: <filter>
  rev: 1A01 scheme: GPT
  ID-4: /dev/sdb maj-min: 8:16 vendor: Western Digital
  model: WD4005FZBX-00K5WB0 size: 3.64 TiB block-size: physical: 4096 B
  logical: 512 B speed: 6.0 Gb/s type: HDD rpm: 7200 serial: <filter>
  rev: 1A01 scheme: GPT
  ID-5: /dev/sdc maj-min: 8:32 type: USB vendor: Toshiba model: TransMemory
  size: 14.92 GiB block-size: physical: 512 B logical: 512 B type: N/A
  serial: <filter> rev: 1.00 scheme: MBR
  SMART Message: Unknown USB bridge. Flash drive/Unsupported enclosure?
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 864.75 GiB size: 767 GiB (88.70%) used: 761.94 GiB (99.3%)
  fs: btrfs dev: /dev/dm-0 maj-min: 254:0
  mapped: luks-466d5812-64c7-4a28-bcc4-a1a5adfa9450 label: N/A
  uuid: 6ce26050-4dcc-47b7-a937-45467d8b8d61
  ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)
  used: 26.1 MiB (5.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
  uuid: 4B3B-683F
  ID-3: /home raw-size: 864.75 GiB size: 767 GiB (88.70%)
  used: 761.94 GiB (99.3%) fs: btrfs dev: /dev/dm-0 maj-min: 254:0
  mapped: luks-466d5812-64c7-4a28-bcc4-a1a5adfa9450 label: N/A
  uuid: 6ce26050-4dcc-47b7-a937-45467d8b8d61
  ID-4: /run/media/sarah/ConvergentRefuge raw-size: 3.64 TiB
  size: 3.64 TiB (100.00%) used: 1.3 TiB (35.7%) fs: btrfs dev: /dev/dm-2
  maj-min: 254:2 mapped: luks-c847cf9f-c6b5-4624-a25e-4531e318851a
  label: ConvergentRefuge uuid: 7d295e73-4143-4eb1-9d22-75a06b1d2984
  ID-5: /run/media/sarah/MSS_EXtended raw-size: 731.51 GiB
  size: 731.16 GiB (99.95%) used: 480.53 GiB (65.7%) fs: xfs
  dev: /dev/nvme1n1p1 maj-min: 259:5 label: MSS EXtended
  uuid: 20339e0b-8343-433e-9209-ac67e31d9d73
  ID-6: /run/user/1000/keybase/kbfs raw-size: N/A size: 250 GiB
  used: 0 KiB (0.0%) fs: fuse dev: /dev/fuse label: N/A uuid: N/A
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
  ID-1: swap-1 type: partition size: 64 GiB used: 0 KiB (0.0%) priority: -2
  dev: /dev/dm-1 maj-min: 254:1
  mapped: luks-81b2dc57-06f5-4471-b484-77c3a516f307 label: N/A
  uuid: c5112526-26fb-473c-b7ab-bb9ef049aa38
Unmounted:
  ID-1: /dev/nvme1n1p2 maj-min: 259:6 size: 16 MiB fs: <superuser required>
  label: N/A uuid: N/A
  ID-2: /dev/nvme1n1p3 maj-min: 259:7 size: 199.98 GiB fs: ntfs label: N/A
  uuid: E658FD3258FD025B
  ID-3: /dev/sdb1 maj-min: 8:17 size: 3.64 TiB fs: ntfs label: JerichoVariance
  uuid: 1AB22D5664889CBD
  ID-4: /dev/sdc1 maj-min: 8:33 size: 2.97 GiB fs: iso9660
  ID-5: /dev/sdc2 maj-min: 8:34 size: 4 MiB fs: vfat label: MISO_EFI
  uuid: 97EE-3EF6
USB:
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 1 rev: 2.0
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Hub-2: 1-1:2 info: VIA Labs Hub ports: 4 rev: 2.1 speed: 480 Mb/s
  power: 100mA chip-ID: 2109:3431 class-ID: 0900
  Hub-3: 1-1.2:3 info: VIA Labs VL813 Hub ports: 4 rev: 2.1 speed: 480 Mb/s
  chip-ID: 2109:2813 class-ID: 0900
  Device-1: 1-1.3:4 info: Microsoft Xbox One Controller (Firmware 2015)
  type: <vendor specific> driver: xpad interfaces: 3 rev: 2.0 speed: 12 Mb/s
  power: 500mA chip-ID: 045e:02dd class-ID: ff00 serial: <filter>
  Device-2: 1-1.4:5 info: Microsoft XBOX ACC type: <vendor specific>
  driver: N/A interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 500mA
  chip-ID: 045e:02fe class-ID: 0000 serial: <filter>
  Hub-4: 2-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.0 speed: 5 Gb/s
  chip-ID: 1d6b:0003 class-ID: 0900
  Hub-5: 2-2:2 info: VIA Labs VL813 Hub ports: 4 rev: 3.0 speed: 5 Gb/s
  chip-ID: 2109:0813 class-ID: 0900
  Hub-6: 3-0:1 info: Full speed (or root) Hub ports: 6 rev: 2.0
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 3-1:2 info: JMTek LLC. Plugable USB Audio Device type: Audio,HID
  driver: hid-generic,snd-usb-audio,usbhid interfaces: 4 rev: 1.1
  speed: 12 Mb/s power: 100mA chip-ID: 0c76:120b class-ID: 0300
  serial: <filter>
  Hub-7: 3-2:3 info: Terminus FE 2.1 7-port Hub ports: 7 rev: 2.0
  speed: 480 Mb/s power: 100mA chip-ID: 1a40:0201 class-ID: 0900
  Device-1: 3-2.1:5 info: Sunplus Innovation Gaming mouse [Philips SPK9304]
  type: Mouse driver: hid-generic,usbhid interfaces: 1 rev: 2.0
  speed: 1.5 Mb/s power: 98mA chip-ID: 1bcf:08a0 class-ID: 0301
  Device-2: 3-2.4:8
  info: Toshiba TransMemory-Mini / Kingston DataTraveler 2.0 Stick
  type: Mass Storage driver: usb-storage interfaces: 1 rev: 2.0
  speed: 480 Mb/s power: 100mA chip-ID: 0930:6544 class-ID: 0806
  serial: <filter>
  Device-3: 3-2.5:9 info: Microdia Backlit Gaming Keyboard
  type: Keyboard,Mouse driver: hid-generic,usbhid interfaces: 2 rev: 2.0
  speed: 12 Mb/s power: 400mA chip-ID: 0c45:652f class-ID: 0301
  Device-4: 3-2.6:10 info: HUION H420 type: Mouse,HID driver: uclogic,usbhid
  interfaces: 3 rev: 1.1 speed: 12 Mb/s power: 100mA chip-ID: 256c:006e
  class-ID: 0300
  Hub-8: 3-2.7:11 info: Terminus Hub ports: 4 rev: 2.0 speed: 480 Mb/s
  power: 100mA chip-ID: 1a40:0101 class-ID: 0900
  Device-1: 3-2.7.4:12 info: Texas Instruments TI-Nspire Calculator
  type: <vendor specific> driver: N/A interfaces: 1 rev: 2.0 speed: 12 Mb/s
  power: 500mA chip-ID: 0451:e012 class-ID: 0000
  Hub-9: 3-5:4 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s
  power: 100mA chip-ID: 05e3:0608 class-ID: 0900
  Device-1: 3-5.3:7 info: Cambridge Silicon Radio Bluetooth Dongle (HCI mode)
  type: Bluetooth driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s
  power: 100mA chip-ID: 0a12:0001 class-ID: e001
  Hub-10: 3-6:6 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s
  power: 100mA chip-ID: 05e3:0608 class-ID: 0900
  Hub-11: 4-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1
  speed: 10 Gb/s chip-ID: 1d6b:0003 class-ID: 0900
  Hub-12: 5-0:1 info: Full speed (or root) Hub ports: 6 rev: 2.0
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 5-1:2 info: W. H. Freeman IOLab USB Dongle
  type: Abstract (modem),CDC-Data driver: cdc_acm interfaces: 2 rev: 2.0
  speed: 12 Mb/s power: 50mA chip-ID: 1881:0400 class-ID: 0a00
  serial: <filter>
  Device-2: 5-4:3 info: ASUSTek AURA LED Controller type: HID
  driver: hid-generic,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s power: 16mA
  chip-ID: 0b05:18f3 class-ID: 0300 serial: <filter>
  Device-3: 5-5:4 info: ASUSTek ASUS AI Noise-Cancelling Mic Adapter
  type: Audio,HID driver: hid-generic,snd-usb-audio,usbhid interfaces: 4
  rev: 1.1 speed: 12 Mb/s power: 100mA chip-ID: 0b05:194e class-ID: 0300
  serial: <filter>
  Hub-13: 6-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1
  speed: 10 Gb/s chip-ID: 1d6b:0003 class-ID: 0900
  Hub-14: 7-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 7-1:3 info: Schiit Audio Schiit Modi 3+ type: Audio
  driver: snd-usb-audio interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA
  chip-ID: 30be:1014 class-ID: 0102
  Device-2: 7-2:2 info: Microdia USB 2.0 Camera type: Video,Audio
  driver: snd-usb-audio,uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s
  power: 500mA chip-ID: 0c45:6367 class-ID: 0102 serial: <filter>
  Hub-15: 8-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1
  speed: 10 Gb/s chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
  System Temperatures: cpu: 43.4 C mobo: N/A
  Fan Speeds (RPM): N/A
  GPU: device: nvidia screen: :0.0 temp: 55 C fan: 0% device: radeon
  temp: 51.0 C
Info:
  Processes: 803 Uptime: 10m wakeups: 0 Init: systemd v: 249 tool: systemctl
  Compilers: gcc: 11.1.0 alt: 10 clang: 12.0.1 Packages: 2216 pacman: 2197
  lib: 491 flatpak: 3 snap: 16 Shell: Bash v: 5.1.8 running-in: yakuake
  inxi: 3.3.08

You should consider updating Motherboard BIOS
PRIME X570-PRO - BIOS|Motherboards|ASUS

Installing later kernel v5.14 or v5.15 may have better support for Zen3 CPU system

I recommend you turn off the Simultaneous Output option in KDE settings
Users have reported in the past that PulseAudio module module-combine-sink can fail when trying to combine only 3 unnamed devices, so I would expect this module is likely failing when trying to adjust for 5 different devices

I have found that module-combine-sink works better if the names of sinks to be combined are configured using the slave option
Need some help with configuring Pulseaudio - #2 by nikgnomic
If sinks names are not used, the module may need to be removed and reloaded to detect different devices
Simultaneous output not working - #6 by nikgnomic

I suggest the other USB audio devices are removed to avoid any possible conflicts when test the new device

This headphone amplifier has 2 DAC options (AK4490 or AD5547) both of which can support audio quality up to 24 bits 192000 Hz
The DAC may not run very well with the default CD quality settings (16 bit / 44100 Hz) and sound quality is likely to be sub-optimal
PulseAudio may need to be configured for at least 24bits 48000Hz audio quality to use this device effectively

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